Greater London · London and the South East
Roof leak investigation in New Barnet, Greater London
Tracing where water is getting into your roof around New Barnet, with findings in writing and pictures to back them up. Weekday and weekend visits available.
- Water coming in around a roof light or dormer
- Leaks that appear only in driving rain
- Damp ceilings under a flat roof
Roof leak investigation in New Barnet
Roof leaks rarely show up where you’d expect. Water often travels along timbers or underlay before it finds a way down, so a ceiling stain is rarely directly below the cause. We follow it back towards where it starts. Patching the spot above the stain often misses the real cause. Finding the route first lets the repair go where it’s needed. If you are worried about brown rings on upstairs ceilings and damp underlay across a wide area, we can find out what’s behind it.
Water getting into a London home often comes from a detail you cannot see from the street: a butterfly roof’s central valley gutter, a parapet gutter, a chimney flashing or a flat roof over a back addition. Whether you are tracing a leak or recording storm damage in New Barnet, those are among the first places to look. A hidden gutter that overflows can send water a long way before it shows.
Every survey ends with a written report, with photos, emailed to you. It explains the condition of the leaking roof, the defects we found and what we recommend.
- Where
- New Barnet (EN5, EN4, N20)
- Region
- Greater London
- Prices
- From £150 inc. VAT
- Reports
- Written, with photos, emailed to you
- When we survey
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Should I look at the roof myself first?
Fresh stains on ceilings or walls after rain are worth noting. Take a photo and write down when you saw it, as it helps a surveyor trace the cause.
Watch the gutters in a downpour, from a window or the ground. Water spilling over the edge can be a sign of a blockage or a gutter that has dropped.
Towns and villages near New Barnet
Also in New Barnet
Roof by roof
Flat roof upstands and outlets
The upturned edge of a flat roof covering keeps water out at walls. A low or cracked upstand is a common way in.
Valleys
A valley takes the rain from both sides of the roof. Worn or split linings and slipped valley tiles let it under the coverings.
When you need someone else
No survey can tell you everything, and it’s better to know them up front. Bear these in mind:
- What’s under the covering or behind the plaster
- Leaks that only appear in weather we cannot recreate
- The repair itself (the investigation finds and reports the cause)
Not sure which survey suits your roof? You can ring 07833 053749 or use the contact form and we will tell you. The full list of what we check.
What this survey covers
- Chimney stacks
- Lead flashings
- The roof space
- Flat roof details
- Rooflights and dormers
- Valleys and parapet gutters
- Slate and tile slopes
Questions from New Barnet
Is my home in New Barnet listed or in a conservation area?
We cannot confirm that for you, but Historic England’s list and your council can. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
Can parking be tricky for a visit in New Barnet?
Typically it’s manageable with a little notice. Tell us what parking is available nearby, and the visit is planned around it.
Do you use drones?
Yes, where it is applicable. We hold a CAA Flyer ID and Operator ID and fly a drone under 250g, and the airspace and weather are checked before every flight.
Can you survey at the weekend?
Visits run seven days a week in the daytime, which suits people who work during the week. Just say which days work for you.
How many surveys have you done?
Over 5,000 surveys so far, across 20+ years of surveying roofs.
Do you look in the loft space?
If there’s a loft and safe access to it, yes. The roof space can show things the outside cannot, like damp timbers, staining or daylight.
Do you carry professional indemnity insurance?
We are covered by professional indemnity and public liability insurance, for every survey we carry out.
Landlords, agents and block managers in New Barnet
If the property is let, the agent or a tenant can let us in. We survey on any day of the week, which helps when tenants work during the week.
Landlords and letting agents in New Barnet book surveys as well as homeowners. A report with photographs gives you a clear record of the leaking roof, useful for planning maintenance.
The survey, step by step
We photograph the roof as we go, so you can see in the report what we found and where. Close-ups come from the safest viewpoint available, including by drone where it’s applicable and the weather allows. A typical visit takes between one and two hours at most homes, or half a day or so for a commercial building. London terraces rarely offer a view of the whole roof from one spot, so a visit in New Barnet moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. If other people live in the building, let us know who can let us into the shared parts.
- You get in touch with details of the leak and any photos.
- Inside, we check the damp area and the loft space above it.
- Likely entry points outside are looked at, from flashings and valleys to gutters and outlets.
- Moisture readings and thermal imaging are used where they help.
- Your report sets out where the water is most likely getting in, with photos and recommendations.
Getting ready for the survey
- Unlock side gates and any roof access doors
- Buyers: confirm access with the estate agent or seller
- Point out any leaks or damp patches
Arrange a survey
To arrange a survey, phone 07833 053749 or email us with the address and what you’d like to know about the roof. We will confirm the price before you book.
Related advice
Wind, rain and roofs in New Barnet
Outer London has lots of Victorian and Edwardian terraces with slate roofs, but also a great many interwar semis, often with hipped roofs in clay or concrete tiles. If your home in New Barnet is one of them, bay roofs, hips and later dormers each have their own details. Each of these roof types has its own typical places for water to get in. With Wyllyotts Manor about 3.8 miles north, New Barnet sits in an area with a long building history. If you own one of the older houses, expect a mix of original materials and later repairs on the roof, and the council can say whether a home is in a conservation area.
If your house is among the older ones in the streets near Holy Trinity Lyonsdown, leaks on older roofs often start at lead flashings, valleys or around old chimney stacks. Take a building like St Mary's CofE Primary School: tracing a leak on a big roof starts with where the water appears and works back. If you own a rental within reach of New Barnet station, a clear finding on where water gets in helps you brief a roofer straight away.
New Barnet is about 1 mile east of Barnet, in Greater London. Roofs in New Barnet get the same thorough look as anywhere else in Greater London. We cover towns and villages across Greater London, from the larger towns to small villages. There is also a page for London.
All of EN5, EN4 and N20 is within our area for roof leak investigations, from the main roads to the quietest streets. We cover properties on York Road, Park Road and Henry Road. Close by, we survey roofs in Barnet (1 mile west), Cockfosters (1 mile north-east), East Barnet (1 mile south-east), Underhill (1 mile west) and Whetstone (1 mile south). Within a short drive, we also cover London (11 miles south), City of Westminster (9 miles south), Marylebone (9 miles south), Kensington (10 miles south), St Pancras (8 miles south) and Shoreditch (9 miles south-east).
Local landmarks in New Barnet
We work in homes and buildings around Trent School Cockfosters, East Barnet School and The Alexandra pub and the streets around them. There’s a railway station in New Barnet itself: New Barnet station. Nearby you’ll also find Spires Shopping Centre (1.6 miles north-west) and Francis Skaryna Belarusian Library and Museum (2 miles south). For a walk, there is Greenhill Gardens and Darland's Lake.
Why get it checked now?
Leaks tend to get worse, not better. Wind lifts loose slates further and gaps widen. An investigation now gives you time to plan the work. Work on a London roof is rarely simple to arrange, with parking, neighbours and access all to think about. That’s a good reason to find problems early, while there’s time to plan.
There are three survey packages: Basic from £150, Standard from £250 and Premium from £400, with VAT included. The price for your roof depends on its size, access and what you need to know.
Why book with us
- Independent findings on the roof’s condition
- 5,000+ roofs surveyed
- We hold a CAA Flyer ID and Operator ID
- Packages from £150, including VAT